Lesson: Kinetic Friction

A car of mass 1000.0 kg is traveling along a level road at 100.0 km/h when its brakes are applied. Calculate the stopping distance if the coefficient of kinetic friction of the tires is 0.500. Neglect air resistance.

A crate having mass 50.0 kg falls horizontally off the back of the flatbed truck, which is traveling at 100 km/h. Find the value of the coefficient of kinetic friction between the road and crate if the crate slides 50.0 m on the road in coming to rest. The initial speed of the crate is the same as the truck, 100 km/h.

A half-full recycling bin has mass 3.0 kg and is pushed up a incline with constant speed under the action of a 26-N force acting up and parallel to the incline. The incline has friction. What magnitude force must act up and parallel to the incline for the bin to move down the incline at constant velocity?

Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown below. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0 m/s² to the right, what is the magnitude of the applied force?

A child with a mass of 9.8 kg slides at constant speed downward along an incline that is aligned below the horizontal. What is the coefficient of kinetic friction between the child and the slide?